creating matricies

I want to create a nxn matrix of integers so I do:
dim A(n,n) as integer
now I want to be able to enter values row by row like:
A(1) = Array(1,2,3,4,5,6,7,8...)
A(2) = Array(2,3,4,5,6,7,8,9...)
The command above doesn't work, but is there one that does?